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H. L. SMITH.-

. Refining Hydrocarbon. N0. 60,585. 6 Patented D60- .18, 1866.

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IMPROVEMENT IN REFINING HYDRO-CARBON.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, HAMILTON L. SMITH, of Gambier, in the county ofKnox, and State of Ohio, have invented certain new and usefulimprovements in Refining Petroleum, &c.; and I do hereby declare thatthe following va full and complete description of the same, referencebeing had to the accompanying drawings, making a part of thisspecification, in which Figure 1.is a side view of the apparatus.

Figure 2 is a top view.

Figure 3 is an end view of the same.

Like letters of reference refer to like parts in the several 'views.

My improvement relates to the mode of treating hydro-carbon oils bysuperheated air, and filtering them through charcoal. I am aware thatcharcoal has been used as a filterer; but what distinguishes myimprovement is the use of charcoal in combination with the describedapparatus for treating oils.

A is a case containing a rotary fan, which is driven by machinery, orany other desirable means, and is designed for forcing the air throughthe pipe B, which is coiled at a, over a furnace or heater, 0, for thepurpose of exposing more surface to the action of the heat. The air thusbeing heated rises through the pipe B and enters the reservoir D, whichcontains the petroleum. This air votalizes the oil which passes throughthe pipe E, and is condensed in the receiver F. After the firstdistillateis passed over, the faucet in the pipe E may be closed, andthe residuumbe drawn off through the faucet 01 into the vat G, which isfilled with the charcoal for the purpose of filtering the oil. As it isfiltered through this charcoal it passes oil through the faucet e, orthe whole quantity of oil, after it has been treated by the superheatedair, may be filtered through the charcoal in the manner above described.f is a pipe through which the'reservoir is filled, and which is closedafter it is sufiiciently full. 9 is a faucet for closing thecommunicationbetween the receiver F and the reservoir D.

What I claim as my improvement, and desire to secure by Letters Patent,is-

The charcoal filterer G, in combination with the receiver D, fan A,heater C, coiled pipe B, arranged and operating as and for the purposeset forth. I

HAMILTON L. SMITH.

Witnesses! PETER Herr, J. L. WATSON.

